EEF-CVE-2026-43974 gun HTTP/1.1 client accepts unsolicited 101 Switching Protocols response allowing server-driven protocol hijack and OOM

Summary Unexpected Status Code or Return Value vulnerability in ninenines gun gun\http module allows a malicious HTTP server to force the client into raw protocol mode via an unsolicited 101 Switching Protocols response. In gun\http:handle\inform/8, when a 101 Switching Protocols response is...

CVE-2026-43974

The CVE concerns the gun_http module of the Erlang-based Gun library (gun_http) in the Gun HTTP client. Affected versions: Gun 2.0.0 up to but not including 2.4.0. Root cause: when a 101 Switching Protocols response arrives over HTTP/1.1, Gun only validates the Upgrade header syntax and the strea...

PT-2026-47300

Name of the Vulnerable Software and Affected Versions gun versions 2.0.0 through 2.3.x Description An issue in the gun http module allows a malicious HTTP server to force a client into raw protocol mode by sending an unsolicited 101 Switching Protocols response. In the handle inform/8 function, t...

PT-2026-47299

Name of the Vulnerable Software and Affected Versions ninenines gun versions 1.0.0 through 2.3.x Description Uncontrolled Resource Consumption in the gun http module allows a malicious server to exhaust client memory through unbounded HTTP/1.1 response buffering. In the handle/5 function, three...

CVE-2026-43974: Improper Enforcement of Behavioral Workflow

Unexpected Status Code or Return Value vulnerability in ninenines gun gunhttp module allows a malicious HTTP server to force the client into raw protocol mode via an unsolicited 101 Switching Protocols response. In gunhttp:handleinform/8, when a 101 Switching Protocols response is received over...

Gun 安全漏洞

Gun is an open-source Erlang HTTP client developed by Nine Nines, supporting HTTP/1.1, HTTP/2, and WebSocket. Versions of Gun from 1.0.0 to 2.4.0 contained security vulnerabilities. These vulnerabilities stemmed from uncontrolled resource consumption in the gunhttp module, which could allow...

Gun 访问控制错误漏洞

Gun is an open-source Erlang HTTP client developed by Nine Nines that supports HTTP/1.1, HTTP/2, and WebSocket. In versions 2.0.0 to 2.4.0 of Gun, there was a access control vulnerability. This vulnerability stemmed from a source validation error in the gunhttp2 module, which could allow...

Gun 安全漏洞

Gun is an open-source Erlang HTTP client developed by Nine Nines that supports HTTP/1.1, HTTP/2, and WebSocket. Versions of Gun from 2.0.0 to 2.4.0 contained security vulnerabilities. These vulnerabilities stemmed from unexpected status codes or return values in the gunhttp module, which could...

CVE-2026-43973: Allocation of Resources Without Limits or Throttling

Uncontrolled Resource Consumption vulnerability in ninenines gun gunhttp module allows a malicious server to exhaust client memory via unbounded HTTP/1.1 response buffering. In gunhttp:handle/5, three clauses accumulate incoming TCP data into the connection's buffer field using binary concatenati...

CVE-2026-43972: Origin Validation Error

Origin Validation Error vulnerability in ninenines gun gunhttp2 module allows cross-origin cookie injection via unvalidated HTTP/2 PUSHPROMISE authority. In gunhttp2:pushpromiseframe/7, the :authority pseudo-header from an incoming PUSHPROMISE frame is stored verbatim into the promised stream...

WS-2019-0365

In Gun, prior to v0.2019.416 there is vulnerability that allows access to sensetive resources without limitation...

Malicious code in tea_gunfinal (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector e39061b5c4bd19ce1c4484339c02362e1c72a8e487bd6902d4403694902843e2 This package appears to be part of the tea.xyz token reward campaign that flooded npm. These packages typically contain autopublish scripts auto.js,...

EUVD-2025-144082

Malicious code in manuffak-angabofi-gun npm...

School’s AI system mistakes a bag of chips for a gun

An artificial intelligence AI detection system at Kenwood High School mistakenly flagged a student’s bag of potato chips as a gun, triggering a police response. The 16-year-old had finished eating a bag of Doritos and crumpled it up in his pocket when he was done. But the school’s AI-based gun...

EUVD-2017-8600

Malware in sbrugna...

EUVD-2017-8599

Malware in sbrugna...

We Made Luigi Mangione’s 3D-Printed Gun—and Fired It

In the wake of Luigi Mangione’s alleged killing of a health care CEO with a partially 3D-printed pistol, we built and tested the exact same model of weapon ourselves. And it was entirely legal...

Facebook and Instagram Ads Push Gun Silencers Disguised as Car Parts

A network of Facebook pages has been advertising “fuel filters” that are actually meant to be used as silencers, which are heavily regulated by US law. Even US military officials are concerned...

The ‘Ghost Gun’ Linked to Luigi Mangione Shows Just How Far 3D-Printed Weapons Have Come

The design of the gun police say they found on the alleged UnitedHealthcare CEO’s killer—the FMDA or “Free Men Don’t Ask”—was released by a libertarian group...

The World’s Most Popular 3D-Printed Gun Was Designed by an Aspiring Terrorist

Growing numbers of insurgents and extremists use the FGC-9. Forensic analysis of online platforms reveals the dark world of the man who created it—a self-described incel who supported the German far right...